Slideout seal/gasket

The interior rubber gasket which which slips on a metal lip and goes around the top and sides of the slideouts on my Wildcat partially comes off on the top only when the slide is moved sometimes causing the exterior seal to roll under instead of laying flat. We do have slide awnings so we still some what protected from the weather. Has anyone had this issue and does anyone have a suggestion how to fix it?
Thank you all in advance